As many as 15 flights a week will run to Birmingham, East Midlands and Manchester will both have 12 flights and Cardiff will have just six.

What's more, passengers wishing to use bmibaby's new service can expect fares to start from as little as £18.99 one-way, and that's including tax too.

Managing director of bmibaby, Crawford Rix, is sure demand for these domestic flights will be steady.

He said: "We are delighted to go on sale today with our summer 2010 flying programme from Belfast International airport, further demonstrating our commitment to Northern Ireland. We will continue to offer consistently low fares, and by going on sale with our summer 2010 flight programme now, we are allowing customers to plan ahead and secure the best deals for next year."